Drathro's Computer Control

Merdeen obeys when Drathro commands him to eliminate an over strength work unit on Marb station. The single remaining functional component is deleted, leaving the station barren of any non-mechanical …

The black light system's failure triggers Drathro's volcanic rage. He demands immediate explanation but the service robot's relay fails, creating a moment of technological helplessness that exposes his reliance on …

Grell ambushes Merdeen in the subway corridor with a crossbow, shifting from armed threat to interrogator. Their standoff reveals Grell’s fixation on stealth and hidden motives while Merdeen deflects suspicion …

Merdeen confronts Drathro about his claimed immortality while the Doctor’s companion demands answers about Balazar’s disappearance. The urgency of Drathro’s mission to locate Balazar for a critical task clashes with …

As Katryca’s villagers close in on the castle, Drathro and his assistants grapple with imminent annihilation. When Humker questions the futility of defending against the attack, Drathro reveals his contingency …

Humker and Tandrell detect a critical malfunction in the black light system while inspecting Drathro’s equipment. Tandrell suggests the Doctor may have caused the problem, but Drathro interrupts, already aware …

The Doctor makes a final, desperate attempt to stop Drathro from activating the failing black light system before it triggers irreversible destruction. Time is running out as the tyrant denies …

Drathro seizes Dibber's multiblaster and toys with the captives before revealing his plan to allow the black light system to detonate rather than surrender. The Doctor desperately works with Peri …